Maximum control for every application - 5-step speed dial ideal for working with stainless steel, carbide burrs & accessories up to 75 mm Delivering corded performance similar to a 1200 W grinder ONE-KEY™ tool tracking & security offers a free of charge cloud-based tracking network and inventory management platform for your tools. ONE-KEY™ also features a remote locking functionality Spindle lock - increased productivity by reducing the need of 2 wrenches RAPIDSTOP™– stops all accessories in under the 2 seconds .